Apparatus for making spool-enclosing shells



Sept. 13, 1938. J. A. JOHNSON 2,129,771

API ARATUS FOR MAKING SP OOL-ENCLOSING SHELLS Filed Jurie 27,- 1956 5 SheetsSheet 1 IN VENTOR.

J. H JUH/VSU/V I BY W a W ATTORNEY.

Sept. '13, 1938. I J. A. JOHNSON 2,129,771

APPARATUS FOR MAKING SPOOL-ENGLOSING SHELLS Filed June 27', 1956 5 Sheets-Sheet 2 1N VENTOR.

ATTOR EY.

Sept. 13, 1938. J. A. JQHNSON APPARATUS FOR MAKING SPOOL-ENCLOSING SHELLS Filed June 27, 1956 5 Sheets-Sheet a 1N VENTOR.

ATTORNEY.

Sept. 13, 1938. J. A. JOHNSON APPARATUS FOR MAKING SPOOL-ENCLOSING SHELLS Filed June 27, 1956 5 Sheets-Sheet 4 INVENTOR. Jfl. .JUH/VS /v ATTOR EY.

Sept. 13, 1938. J. A. JOHNSON 2,129,771

' APPARATUS FOR MAKING SPOOL -ENGLOSING SHELLS Filed'June 27-, 1936 5 Sheets-Sheet 5 IN VENTOR.

Patented Sept. 13, 1938 UNITED STATES PATENT OFFICE APPARATUS FOR MAKING SPOOL-ENCLOS- ING SHELLS a 20 Claims.

This invention relates to apparatus for making shells to be engaged upon the flanges of spools, usually of circular form, carrying a strand or web of material, such as adhesive medicated tape,

wound upon the core of the spool, said shell being adapted to enclose the space between the spool flanges and in conjunction with the spool flanges form an enclosing casing for the material wound upon the spool core. It is an object of m? the invention to provide improved apparatus for efiiciently and expeditiously making shells of this character.

Shells for this purpose comprise a sheet metal body of cylindrical or barrel form of slightly greater length than the spool and are provided with a rolled bead at each end to reinforce the body by rolling the material at the ends of the body upon itself. To releasably retain the spool within the shell or casing, the body of the shell is provided with nibs or protuberances extending inwardly and spaced about the body at each end. Said nibs or protuberances are pressed from the material of the body and arranged to engage within and at the inner side of the peripheral portion of the spool flanges, and over which nibs or protuberances the peripheral portion of the spool flanges is adapted to be sprung in engaging the spool in and removing it from the shell or casing.

70 It is a further object of the invention to provide improved apparatus for providing the body' of the shell or casing with a reinforcing head at each end and in successive sequence therewith press portions of the material of the body inil wardly to form the body with nibs or protuberances spaced about and arranged adjacent the ends of the body of the shell.

Apparatus of this character is adapted for use in connection with machines for making cylin- HJ drical bodies or barrels, such as container bodies,

comprising means to shape a blank to cylindrical form about a horn and secure it at the longitudinal marginal portions to retain it in said condition. The body or barrel so formed in said machine is transferred from said machine to the apparatus of the present invention for curling the opposite end portions of the body or barrel and provide the same with inwardly extending J) nibs or protuberances adjacent the opposite ends and circumferentially spaced about the same. In order that the body or barrel will be delivered from the forming machine therefor to a horizontal. support or horn therefor arranged centrally of a die of a head, it is essential that part of this application Figure l is a plan view of apparatus embodying the invention.

Figure 2 is a sectional view taken substantially on the line 22 of Figure 1 looking in the direction of the arrows.

Figure 3 is an end elevation, partly in section, the section being taken substantially on the line 3-3 of Figure 1 looking in the direction of the arrows.

Figure 4' is a side elevation, partly in section, of the means for arranging the body shell with inwardly extending nibs or protuberances.

Figure 5 is a front elevation of the means for arranging the shell body with inwardly extending nibs or protuberances and viewed from the left of Figure 4 with the parts shown in operative position.

' Figure 6 is a view slmilar to Figure 5 with portions thereof broken away but showing the parts in normal inoperative position.

Figure '7 is a sectional view of the product of the apparatus showing the manner of retaining a spool within the shell by the inwardly extending nibs or protuberances; and

Figure 8 is a perspective view of a portion of the framework for supporting the operative parts of the apparatus and mounting base therefor together with means for adjusting the frame vertically of the base.

As stated it is an object of the invention to provide an apparatus for making shells to co-oper- 4,0 ate with the flanges of spools to enclose material wound upon the core of the spool between the spool flanges, as shown in Figure 7, wherein a spool S is shown'enga'ged within a shell comprising a body B of cylindrical form provided at the opposite ends with reinforcing beads by rolling or curling the edge portions of the body outwardly upon themselves, as at 9. The enclosing shell is of somewhat greater length than the spool, and the shell is provided adjacent the ends with inwardly extending nibs or protuberances 10' to engage at the outer side of the spool flanges and: releasably retain the spool within the shell, said. nibs or protuberances' being formed by pressing portions of the material of the shell inwardly.

(ill

In engaging the shell upon the spool, the spool is tilted slightly to engage a peripheral portion of a spool flange within certain of the nibs II] when the opposite peripheral portion of the spool flange 'is pressed inward to spring the shell and spool flange sufficiently to cause said opposite peripheral portion of the flange to pass over the adjacent nib. The spool is removed from within the shell by exerting a pressure on a spool flange to cause the same to be sprung from within the shell. e

In the embodiment of the apparatus illustrated for carrying out the invention, the operative parts are mounted upon a frame F including standards A mounted on a base C, and upor; an auxiliary frame support D carried by an auxiliary base E for a horizontal portion of the frame.

A series of supports II for the shell body B are removably and interchangeably mounted in a head I2 of a turret I3 mounted in the frame F to rotate on a vertical axis, the supports extending laterally from the turret head at substantially a right angle to the axis of said head, there being four of said supports I I in the present instance spaced 90 degrees apart about the turret head. To mount the supports II in the turret head, they are provided with a reduced portion at one end which is engaged in a bore in the turret head I 2, as shown'in Figure 3; and to permit of axial adjustment of the supports II, they are provided with a screw threaded portion engaged by a threaded collar, as at I4, held to the turret head I2 by clamping members releasably secured to the turret head by screws, as shown at I5. The supports II are locked in adjusted position by set screws I6 threaded into bores extended into the top of the turret head abutting the reduced portion of the supports engaged in the turret bores. The supports II are in the nature of dies to effect the curling or rolling outwardly and inwardly of the marginal portion at one end of theshell body B to provide it with the reinforcing bead at said end. For this purpose, the supports are provided with a portion, which is in the nature of a horn or support proper for the shell body B, having a diameter substantially the same as the diameter of the shell body B. Said horn extends forwardly of an annular portion II' of enlarged diameter at the juncture of the horn with the reduced portion of the support. The annular enlargedportion II' has in the face thereof at the juncture of the horn, a recess of semicircular form in cross section, as at II, whereby, as an endwise thrust is applied to the shell body on the horn the marginal end portion engaging said face will be caused to be rolled outwardly and inwardly upon itself andprovide the shell body B with the bead 9 at one end.

The turret is intermittently rotated to successively position the supports or horns at stations (1., b, c and d. In position a, the horns are adapted.

to receive a shell body B thereon, which may be received directly from the home (Figure 2) of a container body forming machine about which the shell body is formed and delivered from said horn e onto the support or horn .II of the turret by head I2, the turret horn II is positioned at st'a-' tion 0 relative to means in the nature of a die 41 complemental to the die II of the horns I I, adapted to engage the shell body on the turret born 9 stationed relative thereto, and operative forcing beads 9 at the opposite ends of the shell body. ,Upon the next movement of the turret, the turret horns are positioned at station d, and

means are arranged at said station to provide the shell body with the inwardly extending nibs or protuberances I0 and remove the shell body from the turret horn II.

The present apparatus is adapted for use in connection with container body forming apparatus with the horn, about which the body is formed, of such apparatus being in alinement with a turret horn II at station a, and the present apparatus is operatively connected with the container body forming apparatus to operate both apparatus in synchronism. In the present instance, the apparatus is shown as independently operative and operated from a suitable source of power, the apparatus being shown as provided with a pulley II loose on a drive shaft I8 and adapted to be coupled to the shaft through a clutch, shown in a conventional manner at I9 (Figure 1). The turret is intermittently rotated from the drive shaft I8 through a Geneva gear operatively connected with the drive shaft I8, one member of said gear being fixed to a shaft 2| operatively connected with the turret by a bevel gear 22 fixed on the shaft 2I meshing with a bevel gear 23 fixed to the turret I3. The member 20 is driven from a wheel 24 fixed on a shaft 25 driven from the drive shaft I8 by a bevel gear 26 on shaft 25 meshing with a bevel pinion 21 on a shaft 28 having a bevel gear connection 29 with shaft I8. The Geneva gear is arranged to transmit two intermittent movements to the turret upon each revolution of the shaft 25. For this purpose, the member 20 in the form of a wheel is provided with four slots 30 extended radially inward of the wheel and equidistantly spaced about the same, the peripheral portions of the wheel 20 between the slots being arranged of convex form, as at 3|. The wheel 24 carries a'pair of rollers'mounted on diametrically opposite studs'fixed in and extending from a face of the wheel, as at 32, said rollers upon each onehalf revolution of the wheel 24 being adapted to successively engage successive slots in the Wheel 20. A member 33 having diametrically opposite convex portions 34 is rotatable with the wheel 24 and one of which convex portions is adapted to engage and travel relative to a concave portion 3| of the wheel 20 and hold said wheel, and thereby, the turret against movement during the periods of rest of said wheel 20.

To positively lock the turret against movement during the periods of rest, the turret head I2 is provided with a series of recesses 36, these recesses being four in number, equal in number to and arranged in axial alinement with the supports I I, and adapted to be engaged by a detent 35. The detent 35 is mounted to have sliding movement toward and away from the turret head, in the present instance in alinement with a horn or support II in the shell body receiving position, a

thereof. As shown, the detent 35 is mounted'in a slideway 3'! in a bracket 38 fixed to the frame F and urged toward the turret head to engage a notch or recess 36 therein by'a spring 39. The

detent is moved out of engagement with a turret recess 36 just prior to transmitting intermittent movement to the turret by a lever 46 pivotally carried by arms 38 extended from the bracket 38,.

when actuated to move the detent against the action of the spring 39. The lever is actuated to release the detent from a turret recess by a roller 43 rotatably carried in a bifurcation at the end of the other lever arm following a cam 44 fixed on a shaft 45 having a bevel gear drive connection $6 with the shaft 28, the cam being arranged to actuate the lever in timed sequence with the actuation of the turret to move the locking detent out of a turret recess 36 and release the detent to permit it to assume locking position.

After a shell body B has been engaged at station a upon a turret horn or support I I, the turret l3'is advanced to position b where no operation is effected upon a shell body on the support therefor at said station; but a shell body B is engaged upon a successive horn or support It at station a. In the successive movement of the turret I3, the turret horn H is positioned at station 0 relative to the means to arrange the reinforcing beads 9 at the opposite ends of the shell body B on the turret horn l I. This means comprises a die 4? complemental to the die portion ll,' said die being in the form of a head 47 having an annular recess substantially of semi-circular form in cross section in the face thereof, as at 48-. The head 41 is carried by aplate 59' by engaging a reduced portion of the head in an opening in said plate, as at 5il,'and is secured therein by a set screw 51. The plate 49 is secured to a slide 5i slidably mounted in slideways 52 in the topof the frame F to have limited reciprocatory movement toward and away from a turret die l l at station 0, the slide being retained in the slideways by gibs 53. To reciprocate the slide, it is operatively connected with the pin of a crank 18 connected to the shaft l8 by connection means comprising a pair of members, one of which members having a split collar portion 54 engaged upon the crank pin and a longitudinally split tubular portion 55. The other of said members has a collar portion 56 engaged upon a pin 57 mounted at the endsin and extending between walls 58 of the slide 5|, and a longitudinally split tubular portion 56 extended from the collar portion 56, as shown in Figures 1 and 2. The members 54, 55 and 56, 59 are connected to permit of adjustment of the slide 56 toward and away from the crank pin l8 and of the die 41 relative to turret horn and die II, II. For this purpose. there is provided a stud 66 having an intermediate portion 6! of increased diameter and the opposite end portions screw threaded for connection with screw threads in the split tubular portions 55, 59, whereby, as the stud is rotated in cation of an implement to rotate the same, suchas a wrench, and as shown, is arrangedfor the application of 'a pin wrench.

The operation of curling or rolling the end portions of the shell body B outwardly and inwardly upon themselves, the shell body being engaged upon the turret supporting horn l I, is effected at station 0. The shell body is'of a length greater than the length of the horns H, as shown at the left in Figure 2, the shell body 13 being initially of a length equal to the length of the turret horns l l plus the amount that is rolled upon itself at the ends. As a turret horn II- with a shell body B thereon is positioned at station 0, the'complemental die 47 is moved toward the die II, and by this movement of the complemental die, the edges of the shell body will first engage the wall of the semi-circular recesses in the dies ll, 41. By the continued movement of the complemental die toward the die I l due to the conformation of said recesses the opposite end portions of the shell body are rolled outwardly and inwardly upon themselves, as shown at the right of Figure 2,

mounted in slideways on the frame F to have re ciprocatory' sliding movement toward and away from the turret horn II at station 11 and dispose the indenting devices about the shell body on said horn, and the provision of means to move the indenting devices toward the shell body onthe horn to indent the same, maintain the indenting means in said position during the movement of the same with the carrier away from the turret born to deliver the shell body from the horn, and operative to release the shell body from the indenting devices when they are moved away from the horn. While the indenting devices may consist of any desired number, they are shown as three in number, each indenting device, as shown in Figures 3, 4, 5 and 6, comprising a block 64 each carrying or arranged with a pair of indenting points 65, 65', each of said points being adjacent an end of the block and spaced apart a distance to position the indentations or nibs l6 adjacent each end and within the beads 9 at the ends of the body shell, such spacing depending upon the length of the shell body. Each block is carried by and suspended between a pair of'spaced arms 66 extending from one of a series of three slides 61 mounted in slideways equidistantly spaced about and extending radially of a circular vertical portion 68 of the carrier 63, the slides being retained in the slideways by'gibs 69. The block 64 is suspended from and between the arms 66 by a cap 61' bridging the arms and a bolt 64? extended through an opening in the cap and threaded into the block. The slides 6'! are urged radially outward by springs 66 to normally space the indentor points apart a distance greater than the diameter of the shell body B on the turret horn ll.

The carrier 63 with the indenting devices is reciprocated toward and away from a turret horn H at station it by an eccentric or cam l0 fixed on a shaft H journaled in a bracket 1.! extended upward from the frame F and operatively connected to and driven from the drive shaft it by a sprocket chain 13 passing around a sprocket wheel 14 on the shaft H and a sprocket wheel 75 on an intermediate shaft 16 journaled in bearings in brackets 11 fixed upon the frame F with the lower stretch of the chain riding over an adjustable take-up roller or wheel "I8. The shaft 16 is operatively connected to the shaft I8 through bevel gears, as at I9. The eccentric I0 operates between a pair of rollers 80 carried on studs fixed in and extending between a pair of plates BI and disposed at diametrically opposite sides of the eccentric carrying shaft II. The shaft II is extended through elongated openings 82 in the plates 8|, the plates being mounted in slideways 83 of the brackets I2 to have recipro- V catory sliding movement parallelly of the carrier 63 imparted thereto by the eccentric I0 engaging the rollers 80. The movement of the plates 8| is transmitted to the carrier 63 through a lever 84 between the brackets "I2 pivotally supported at one end on a shaft 86 fixed in said brackets, the lever having a lost motion connection 85 with the plates 8|. bifurcated and pivotally connected, as at 86, to a member 81 having a longitudinally split tubular portion 81 internally screw threaded. The carrier 63 is arranged with laterally extending and parallelly spaced members 88 between'the ends of which members is pivotally connected, as at 89, a member 90 similar to the member 81 having a longitudinally split tubular portion 90 and internally screw threaded. The members 81 and 90 are adjustably connected by a stud 9| having an intermediate portion 92 of increased diameter and the portions at the opposite sides thereof screw threaded for connection with the threaded tubular portions 81, 90', the screw threads being such, so that, as the stud is rotated in one direction, said stud 9I will be threaded into the portions 81', 90', and when rotated in the opposite direction threaded out of said portions. When the desired adjustment has been made the split portions 81', 90' are clamped to the stud by screws 93. The intermediate portion of the stud is arranged for the application of an implement, such as a wrench, and shown as arranged for the application of a pin wrench to rotate the stud. The carrier 63 is actuated in timed sequence with the rotation of the turret. 7

To permit of the indentor points 65, 65 pressing the nibs or protuberances laterally from the material of the shell body B on the horns II, the horns II are provided with longitudinal recesses 64* extending from adjacent the die enlargements II of the horns to the'outer end of the horns and of a depth equal to the desired depth of the nibs or protuberances, there being three of said recesses equidistantly' spaced about the horns and arranged in alinement with the indentor points 65, 65. The recesses not only permit of the indenting of the shell body, but by extending the recesses through the outer end of the horns, permit the shell body to be with drawn from the horns by the movement of the indenting means away from a horn.

To impart radial inward movement to the slides '61 carrying the indenting means or devices against the action of the springs 68, a disk 94" is fixed on a shaft 94, as by a set screw, the shaft being rotatably mounted at one end in the circular part 68' of the carrier 53 and at the opposite- The opposite end of the lever is on a turret horn II stationed relative to the indentor means; and the indentors are maintained in said position during the movement of the indentor means toward the turret horn to position the indentors about the shell body on the turret horn, as shown in Figure 3. In said position, the indentor carrying slides 61 are actuated by the cam portions 96 toward the turret horn and into engagement with the shell body thereon to press portions of the material of the shell body inward to provide the nibs or protuberances I9, as shown in Figure 5. This actuation of the slides 6'! is effected by the rotation of the cam 94 and travel of the high portions 96 of the cam surface relative to the rollers 91. The indentors are retained in said position during the return movement of the indentors with the carrier 63, and by the engagement of the indentor points 65, 65 in the nibs or protuberances in the shell body, said body is moved from the turret horn by said movement of the indentor means. When the shell body carried by the indentor points 65, 65

is clear of the turret horn, the cam disk 94 by the continued rotation thereof causes the high cam portions 96' to ride off from the rollers 91 and the low portions of the cam groove to ride relative to the rollers due to the action of the springs 53, as shown in Figure 6. The engagement of the rollers 91 with the low portions of the cam recess 96 will release the shell body from the indentors and permit it to pass from between the indentor points and drop through an opening I00 in the frame F.

The cam disk 94 is operatively connected with and rotated from the shaft II by a shaft IOI having a bevel gear connection I02 with the shaft 1!. A pinion gear I04 on shaft 94 connected by suitable means, shown as a screw, with the cam disk to maintained in mesh with the gear I04. For this purpose the pinion I03 is fixed on one end of a bushing I05 rotatable in a lateral extension 95 of the part 95 of the carrier 63 and secured to said extension to participate in the movement of the carrier 63 by a nut I06 threaded onto the opposite end of the bushing I05 and the side of the extension 95' opposite the pinion I03, as shown in Figure 1. To permit of sliding movement of the bushing on'and rotation with the shaft IOI, it is provided with a keyway for the slidable engagement of a key I01 fixed in the shaft.

The apparatus is adapted to provide beads 9 and nibs or protuberances I0 in shell bodies of different length and different diameters. For this purpose, the combined turret horns I I and dies II are arranged to be interchangeably mounted in the turret head I2. The length of shell body to be acted upon is determined by the position of the face with the semi-circular recess in the enlarged portion II' of the horns II relative to the outer end of the horns; and to act on shell bodies of different diameters, turret-horns II of different diameter are provided. The in- I03 on shaft IOI meshes with a V dentor-point-carrying blocks 64 are also inter- 7;

iii

changeable. The indentor point 65 is always arranged at one end of the block and the indentor 65' is variably arranged on the block relative to the indentorpoint 65, as shown at 65 in Figure 3, showing said indentor point adjacent the indentor 65 and in position for indenting a shell body of the smallest length to be indented.

As stated, it is an object of the invention to provide means to effect vertical adjustment of the carrying frame F for the operative parts, whereby to position the turret horns H in line with the horn c (Figure 2) of a container body forming machine and adapt the present machine to be used in conjunction with a containerbody-forming machine. To effect vertical adjustment of the carrying frame F, there is provided an auxiliary base C mounted in slideways I08 longitudinally of the base 0. The auxiliary l base C is arranged at the opposite sides and ends with laterally extending portions I09, the upper surface of which portions decline in the same direction and at the same angle, as at I H). The base or leg portions of the standards A are each provided with an undercut portion Ill bevelled or inclined to correspond with and engage the declining faces llll of the auxiliary base C. The auxiliary base is secured to the base C by bolts H2 extended through slots H3 in the auxiliary base and threaded into the base C. To facilitate adjustment of the auxiliary base C and the frame F vertically, there is provided a lead screw H4; having threaded connection with one end of the base, or a block within the base, midway the sides thereof, and rotatably mounted in a lug I I5 extended upward from the base C, and held against longitudinal movement therein by a collar IIB fixed on the screw at one side of the lug and a shoulder formed by a head III at the end of the screw arranged for the application of a crank to rotate the screw. To adjust the frame, securing bolts H8 are loosened when the frame F is to be adjusted upward, as well as the bolts H2 for the auxiliary base C, when the lead screw l M is rotated to effect movement of the auxiliary base C to the left as viewed in Figure 8, and after adjustment, the frame and auxiliary base securing bolts are manipulated to secure them to the base C. To effect vertical downward adjustm'entpf the frame F, the lead screw lit is rotated in the opposite direction.

To limit the movement of the carrier 63 for the indentor means towardthe turret horn l positioned at station d relative to said means and thereby position the indentors 65, 65 to cause the nibs or protuberances to be impressed in a shell body B on said turret horn, a headed plug 63' is mounted in'an opening in the portion'68 of the carrier in axial alinement with the turret horn, the head of the plug projecting from the face of the carrier and adapted to abut the end of the turret born, as shown in Figure 3.

While I have described and illustrated one embodiment of the invention it will'be obvious that various modifications may be made-inthe construction and arrangement of the parts and that portions of the invention may be used Without others and come within the scope of the invention. Having described my invention, I claim:

1. In apparatus for the purpose specified, a horn adapted to support a tubular sheet met-a1 body thereon, means adapted to be disposed ra dially about the body on the horn operative to press portions of the material of the body laterally to form the body with inwardly extending protuberances spaced circumferentially about and adjacent the ends of the body, one of said members being movable longitudinally toward and away from the other.

2. In apparatus for the purpose specified, a horn to support a tubular sheet metal body thereon, means reciprocatory longitudinally of the horn adapted when moved toward the horn to' engage circumferentially spaced portions of the body on the horn and operative to press said engaged portions of the material of the body radially inward to form the body with spaced protuberances and move the body from the horn by the movement thereof away from the hor and release the bodytherefrom.

3. In apparatus for the purpose specified, a horn having recesses extending longitudinally of and radially spaced about the horn and the horn adapted to support a tubular sheet metal body thereon, a member reciprocatory longitudinally of the horn adapted when moved toward the born to engage about the body on the horn, and means carried by said member adapted to be disposed relative to the recesses in the horn when said member is moved toward the horn and operative to press portions of the material of the body radially inward to form the body with inwardly extending protuberances circumferentially spaced from each other.

4. Apparatus as claimed in claim 3, wherein the means to form the protuberances is maintained in engagement with the protuberances formed thereby during the movement of said means with the member away from the horn and operative when the body is removed from the horn to release the body therefrom.

5. In apparatus for the purpose specified, a horn having recesses radially spaced about and extending longitudinally thereof adapted to receive and support a tubular sheet metal body thereon, a member reciprocatory toward and away from the horn adapted when moved .toward the horn to engage about the same, means to actuate said member, means disposed about and carried by said member to have movement radially from the member to the horn and adapted to be disposed in alinement with the recesses in the horn when the member is moved toward the horn to co-operate with said recesses to indent and provide the body with inwardly extending protuberances adjacent opposite ends thereof during the movement of said indenting means toward the horn, and means operative when the member is moved toward the horn to actuate said indenting means toward the body on the horn, maintain said indenting means in engagement with the indentations during the movement thereof with the member away from the horn thus causing the body to move therewith from the horn and operative in said latter position to actuate the indenting means to release the body therefrom;

6. In apparatus for the purpose specified, a horn, a support for the horn mounted to have movement about an axis transverse to the axis of the horn and said horn adapted to support a tubular sheet metal body thereon, means to intermittently rotate the support with the horn and successively position the horn at different stations and adapted to receive the body thereon at one of said stations, a member at another station reciprocatory axially'of and toward and away from the horn and when moved toward the horn adapted to engage about the horn, means carried by and'disposed about said member to have movement radially 'therefrom'toward the ing means toward the body on the horn, maintain said means in said position, thus causing .the body to move therewith from the horn by the movement of the carrying member therefor away from the horn, and then operative to release the body.

7. In apparatus for the purpose specified, an intermittently rotatable turret, a series of radially extending dies carried by and equidistantly spaced about the turret, a support extending concentrically from each die adapted to receive a tubular sheet metal body thereon when the dies are stationed at one position of rest of the turret, a complemental die stationed relative to a turret die in another position of rest of the turret dies and operative to co-operate with a turret die to roll the opposite end portions of the body upon themselves to provide the body with a bead at each end thereof, and means stationed relative to a turret die at another position of rest of the turret dies to' indent and provide the body on the die with inwardly extending protuberances spaced circumferentially about and adjacent each end of the body and to remove the bodies from the supports.

8. In apparatus for the purpose specified, a rotatable turret, a series of radially extending dies carried by and equidistantly spaced about the turret, means to support a tubular sheet metal body extending concentrically from the dies, means to intermittently rotate the turret to position the dies at successive stations and adapted to receive a sheet metal body on the supporting means therefor at one station, a complemental die supported at another station to have movement toward and away from a die carried by the turret and co-operate with said latter die to roll and form a bead at each end of the body, and means at another station reciprocatory toward-and away from a turret die and operative when moved toward said turret die to indent and provide the body with inwardly extending protuberances spaced circumferentially about and adjacent each end of the body and remove the body from its support by the movement of said means away from the turret die.

9. In apparatus for the purpose specified, a

rotatable turret, a series of dies equidistantly spaced about and extending radially of the turret, each .die having an annular recess in the face thereof, means to support a tubular sheet metal body extending concentrically of and in line with the annular recess of the die, means to intermittently rotate the turret to' position the dies carried thereby at successive stations and the supporting means adapted to receive a body thereon at one of said stations, a die complemental to the dies carried by the turret supported at one of said stations to have movement toward and away from a turret die and co-operate therewith to curl and provide a bead at the opposite ends of the body, and means at another station operative to eject the bodies from the supports of the'turret dies.

10. In apparatus for the purpose specified, a rotatable turret, a series of dies equidistantly spaced about and extending radially of the turret, each die having an annular recess in the horn and adapted to indent the body on "the face thereof, means to support a tubular sheet metal body extending concentrically of and in line with the annular recess of'the die, means to intermittently rotate the turret to position the dies carried tifereby at successive stations and the supporting means adapted to receive a body thereon .at one of said stations, a die complemental to the dies carried by the turret supported at one of said stations to have movement toward and away from a turret die and cooperate therewith to curl and provide a bead at the opposite ends of the body, and means at another station operative to indent and arrange the body -on the supporting means of the turret die stationed relative thereto and provide the body with inwardly extending protuberances spaced circumierentially about and adjacent each end thereof and eject the body from the supporting means.

11. In apparatus for the purpose specified, a rotatable turret, a series of supports for tubular sheet metal bodies equidistantly spaced about and extending radially of'the turret, means to intermittently rotate the turret to position the supports at successive stations and the supports adapted to receive a body thereon at one of said stations, and means at another station relative to which the supports are successively positioned operative to indent and arrange the body with inwardly extending protuberances spaced circumferentially about and adjacent each end of the body.

12. Apparatus. as claimed in claim 11, wherein the means to indent the bodies is also operative to eject the bodies from the supports.

13. In apparatus for the purpose specified. a rotatable turret, a series of dies equidistantly spaced about and extending radially of the turret,.each die having an annular recess in the face thereof, means to support a tubular sheet metal body extending concentrically of and in line with the annular recess of the die, means to intermittently rotate the turret to position the dies carried thereby at successive stations and the supporting means adapted to receive a body thereon at one of said stations, a die complemental to the dies carried by the turret supported at one of said stations to have movement toward and away from a'tur'ret die and co-operate therewith to curl and provide a bead at the opposite ends of the body, and means at another station reciprocatory toward and away from a turret die and adapted when moved toward said die to engage about the body on the support therefor of the die and in said position operative to indent the material of and provide thebody with inwardly extending protuberances spaced circumferentially and between the beads at the ends of the bodyand eject the body from the support during the movement thereof away from the die.

14. In apparatus for the purpose specified, a rotatable turret, a series of dies equidistantly spaced about and extending radially of the tur-, ret, each .die having an annularrecess in the face thereof, means to support a tubular sheet metal body extending concentrically of andin line with the annular recess of the die, means to intermittently. rotate the turret to position the dies carried thereby at successive stations and the supporting means adapted to receive a body thereon at one of said stations, a die complemental to the dies carried by the turret supported at one of said stations to have movement toward and away from a turretdie and co-operate therewith to curl and provide a bead at the opposite ends of the body, and means at another station to indent and provide a body on the support of a turret die with inwardly extending protuberances spaced circumferentially about the body and between the beads at the ends of the body, comprising a carrier reciprocatory toward and away from the body support of a turret die, indentors spaced about said carrier to have oscillatory movement radially thereof and. disposed about the body on the support of the turret die when moved toward said support with the carrier, and means. operative to move the indentors to indent the material of the body on the support of the turret die, retain the indentors in said position during the movement of the carrier away from the support, and operative to release the body therefrom when the carrier is moved away from the support.

15. In apparatus for. the purpose specified, an intermittently rotatable turret, a series of dies equidistantly spaced about the turret, a horn arranged concentrically of each die adapted to be successively positioned to receive a body, and a complemental die relative to which the turret horns are successively stationed and movable toward and away from and adapted to co-operate with the turret die to simultaneously curl and provide a bead at the opposite ends of the body.

16. In apparatus for the purpose specified, an intermittently rotatable turret, a series of dies equidistantly spaced about the turret, each die having an annular recess, a horn arranged concentrically of each die adapted to be successively positioned to receive a body, means to intermittently rotate the turret, a die complemental to the turret dies relative to which die the turret dies are successively stationed by the intermittent rotary movement of the turret and mounted to have movement toward and away from the turret die and co-operate therewith to provide the opposite ends of the body with a rolled bead, means to reciprocate said die toward and away from the turret die stationed relative thereto, means relative to which the horns with the bodies thereon are successively stationed by the intermittent movement of the turret and mounted to have movement toward and away from said turret horn and when moved toward the turret horn operative to indent the material of the body on the horn to provide the body with inwardly extending protuberances circumferentially spaced about and adjacent each end of the body, and means to actuate said means toward and away from a turret horn, actuate the indenting means toindent the material of the body on the horn, retain the indenting means in said position during the movement thereof away from the turret horn thus causing the body to move therewith from the horn, and then operative to release the body therefrom.

1'7. In apparatus as claimed in claim 10, a frame for supporting the turret, the complemental die and the indenting means, a base on which the frame is mounted to have vertical adjustment, and means to adjust the frame vertically of the base.

18. In apparatus as claimed in claim 10, a frame for supporting the turret, the complemental die and the indenting means, said supporting frame including standards having end faces inclining to the horizontal, a base upon which the frame is mounted to have vertical adjustment, a member mounted on the base tohave adjustment in a horizontal plane arranged with inclined faces complemental to and for engagement with the inclined faces at the end of the frame standards, and means to adjust said member to effect vertical adjustment of the supporting frame on the base. 7

19. In apparatus as claimed in claim 16, a frame for supporting the die carrying turret, the complemental die, the indenting means and the actuating means, a base on which, said frame is mounted to have vertical adjustment to aline the horns of the turret dies to receive a body, and means operative to effect vertical adjustment of the supporting frame.

20. In apparatus for the purpose specified, a horn adapted to receive and support a tubular sheet metal body thereon, a member reciprocatory toward and away from the horn adapted when moved toward the horn to engage around the horn, means to reciprocate said member, indentor means disposed about and carried by said "member to have movement radially from the member to the horn and adapted to indent and provide the body with inwardly extending protuberances adjacent opposite ends thereof during the movement of said indentor means toward the horn, means to yieldingly and normally position the indentor means in spaced relation to the horn, and means operative when the member is engaged around the horn toactuate said indentor means toward the body on the horn against the force of the yielding means into engagement with the body on the horn, maintain said indentor means in engagement with the indentations formed by the indentor means during the movement thereof with the member away from the horn thus causing the body to move therewith from the horn and operative in said latter position to actuate the indentor means under the force of the yielding means to release the body from the indentor means.

JOHN A. JOHNSON. 

